[trunk] fixed potential negative size params (fixes issue 390)

[openjpeg.git] / src / lib / openjp2 / bio.c

diff --git a/src/lib/openjp2/bio.c b/src/lib/openjp2/bio.c
index 5d49580178bbec81e7368f93e83d9ad9834240aa..636264ce3286d68efa507805cb991e3ea243f03a 100644 (file)
--- a/src/lib/openjp2/bio.c
+++ b/src/lib/openjp2/bio.c
@@ -81,7 +81,7 @@ static OPJ_BOOL opj_bio_bytein(opj_bio_t *bio);
 OPJ_BOOL opj_bio_byteout(opj_bio_t *bio) {
        bio->buf = (bio->buf << 8) & 0xffff;
        bio->ct = bio->buf == 0xff00 ? 7 : 8;
-       if (bio->bp >= bio->end) {
+       if ((OPJ_SIZE_T)bio->bp >= (OPJ_SIZE_T)bio->end) {
                return OPJ_FALSE;
        }
        *bio->bp++ = (OPJ_BYTE)(bio->buf >> 8);
@@ -91,7 +91,7 @@ OPJ_BOOL opj_bio_byteout(opj_bio_t *bio) {
 OPJ_BOOL opj_bio_bytein(opj_bio_t *bio) {
        bio->buf = (bio->buf << 8) & 0xffff;
        bio->ct = bio->buf == 0xff00 ? 7 : 8;
-       if (bio->bp >= bio->end) {
+       if ((OPJ_SIZE_T)bio->bp >= (OPJ_SIZE_T)bio->end) {
                return OPJ_FALSE;
        }
        bio->buf |= *bio->bp++;